# schoolbag=['语文课','数学课','练习册','笔盒']
# schoolbag1=schoolbag
# print(schoolbag,schoolbag1)
# schoolbag[0]='英语书'
# print(schoolbag,schoolbag1)



# schoolbag=['语文书','数学书','英语书','漫画书']
# length=len(schoolbag)
# i=0
# while i < length:
#     print(schoolbag[i])
#     i +=1



# schoolbag =['语文书','数学书','英语书','漫画书']
# for item in schoolbag:
#     print(item)


# schoolbag=['语文书','数学书','英语书','漫画书']
# print(schoolbag)
# workbook=['语文练习册','数学练习册']
# penbox=['铅笔','油笔','橡皮']
# schoolbag.extend(workbook)
# print(schoolbag)
# schoolbag.append(penbox)
# print(schoolbag)



schholbag=['语文书','数学书','英语书','漫画书']
print(schholbag)
schholbag.pop(2)
print(schholbag)
schholbag.remove('漫画书')
print(schholbag)